Redmond Treehouse. One of the most astonishing treehouses ever built. The palace constructed around a broad-leafed maple tree looks like straight from a tale about Peter Pan. The amazing three-level treehouse was originally built two decades ago by Steve Rondel for his kids. Unfortunately children grew up before Mr. Rondel could finish it, but the new hope right now is that one day there will be grandchildren who will give an excuse to finish this masterpiece. Located in Redmond, Washington, USA.